Automobile heater



Dec. 11, 1928. 1,694,412

P. E. DIEDERICH ET AL AUTOMOBILE HEATER Filed Sept. 29, 1927 I I I l u 1111111111 ATTORNEY.

Patented Dec. 11 1928.

FEE.

PAUL E. DIEDERICH AND IEARSHAL G. ROBERTS, OF DETROIT, MICHIGAN, ASSIGN'ORS TO AMERICAN INJECTOR CQIVIPANY, 035' DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

AUTOMOBILE HEATER.

Application filed September 29, 1927.

This invention relates to the construction of automobile heaters, and has for its object a construction adapted for use in connection with the exhaust pipe of such engines as are at present installed on Chevrolet automobiles, and also to provide simple and efficient means to take a sutlicient amount of heat from the exhaust gases for the heating of the body of the automobile.

This invention consists in the details of construction illustrated in the accompanying drawing, wherein Fig. 1 is side elevation of an engine equipped with a heater embodying the present invention. Fig. 2 is a plan thereof. Fig. 3 is a vertical section on the line 33 of Fig. 2 on a larger scale. Fig. at is a section on the line 4-4 of Fig. 3.

Similar reference characters refer to like parts throughout the several views.

A very common type of automobile heater consists of a shell enclosing the exhaust manifold and provic ed with an air iniet at its front end and a pipe connecting at its rear end to carry heated air to the body of the automobile. It sometimes happens that it is impossible, or at least undesirable, to use this type of heater. and we have designed a heater of the type shown in the present drawing, which is quite effective and satisfactory for many automobiles.

The body of the heater comprises two flat sides 1 and 2 of any convenient siape, between which a curved pipe 3 is held by means of removable transverse plates 7, 5, and 6 whose side edges are bent at right angles so they may be bolted to the plates 1 and 2.

he sides 1 and 2 may be of any desired and convenient shape. The adjacent edges of the plates 7 and 6 are cut to lit the pipe 3. A con tinuous strip 4 of metal extends substantially around the remaining open edges of the sides 1 and 2 to a gap 8 through which air may pass into this heater, this strip 4 being attached to the sides 1 and 2 in any desired manner. \Vhen the heater is positioned on an engine, the gap 8 should be just back of the fan 10.

erial No. 222,711.

The side 2 is formed with an opening 12 and over it is attached a discharge connection 13, from which a conductor pipe 14 extends te the body of the automobile, a regulating device 15 of any desired type being attached to the discharge end of the pipe 14:.

Engines of this character are often provided with an elbow 17 extending from the exhaust manifold 18 or from passages within the cylinder block, to the exhaust pipe 19. This elbow is disconnected from the exhaust pipe and is positioned to connect to the end 20 of the pipe 3. The other end 21 of this pipe 3 is connected to the exhaust pipe 19. These connections may be made before or after the casing is mounted on the pipe 3 after which the pipe 14: is installed to connect the heat-er to the body of the automobile.

The dimensions of a heater of this character and the proportions and shape of its p2 ts may all be changed by those skilled in the art. A heating element 3 of drawn tubing may be made quite thin and the transfer oi heat from the exhaust gases to the surrounding air greatly facilitated.

We claim A heater adapted to be attached to an internal combustion engine comprising a casing formed of parallel sides and a con necting plate extending between the edges thereof, a tubular loop within the casing, removable plates closing the space between the sides and engaging the ends of said loop to position it within the casing, an opening being left between the sides to admit air driven toward said opening by the fan of the engine, said loop being adapted to. connect to the exhaust manifold and to the exhaust pipe of an internal combustion engine, and a conductor pipe connected to one of said sides and adapted to convey heated air from the casing. 

